Sink strainer wrench with work engaging nut



Feb. 9, 1954 F. E. SCHOFIELD 2,668,466

SINK STRAINER WRENCH WITH WORK ENGAGING NUT Filed Oct. 5, 1952 2Sheets-Sheet l Fran/r E Schofie/d INVENTOR.

Feb. 9, 1954 SCHOFlELD 2,668,466

SINK STRAINER WRENCH WITH WORK ENGAGING NUT Filed Oct. :5, 1952 2Sheets-Sheet 2 Frank E .Schof/e/d INVENTOR.

WW BM Patented Feb. 9, 1?54 SINK STRAINER WRENCH WITH WORK 6 snowmcncrFrank E. Schofield, PortIandLOreg Application October a, 1952, SerialNo. 312,883

This invention relates to new and useful improvements and structuralrefinements 1n wrenches, and the principal object of the invention is toprovide a wrench of the character herein described whereby sinkstrainers may be quickly, easily and conveniently installed or removed.

An important feature of the invention, therefore, resides in providing awrench with a sink strainer engaging head, while another feature residesin the provision of a head or heads, which may selectively engage astrainer with three prongs, or four prongs, both of which are incustomary use.

Some of the advantages of the invention reside in its simplicity ofconstruction, in its expeditious operation and in its adaptability toeconomical manufacture.

With the above more important objects and features in view, and suchother objects and features as may become apparent as this specificationproceeds, the invention consists essentially of the arrangement, andconstruction, of parts as illustrated in the accompanying drawings, inwhich:

Figure 1 is a sectional view of a sink, showing the invention applied tothe three pronged strainer thereof;

Figure 2 is an underside plan view of the three pronged strainer;

Figure 3 is a fragmentary sectional view of a sink with a four prongedstrainer, showing the invention applied thereto;

Figure 4 is an underside plan view of the strainer shown in Figure 3;

Figure 5 is a plan view of the wrench per se, adapted for use on a.three pronged strainer;

Figure 6 is a sectional view, taken substantially in the plane of theline 6-6 in Figure 5 and illustrating the strainer engaging headseparated from the wrench;

Figure 7 is a perspective view of a four strainer engaging head;

Figure 8 is a perspective view of a modified embodiment of theinvention;

Figure 9 is a fragmentary top plan view of the modified embodiment, and

Figure 10 is a sectional detail taken substantially in the plane of theline Ill-l0 in Figure 9.

Like characters of reference are employed to designate like parts in thespecification and throughout the several viewsn Referring now to theaccompanying drawings in detail, more particularly to Figures 1-7inelusive, the wrench is designated generally by the reference character20 and embodies in its construction a substantially cylindrical body 22pronged 1 Claim, (01. 81-90) I which is formed integrally with alaterally projecting' handle 24 at one endand with an outturned flange26 at the other end.

A cup-shaped nut 28 is rotatably and slidably positioned on the body 22and is sustained thereon by the flange 26 and the handle 24, it beingunderstood that the central opening 30 in the nut 28 is suflicientlylarge so as to permit the nut to be passed over the handle 24 andinstalled on the body 22.

The nut 28 is provided with internal screwthreads to engage the externalscrew-threads 34 of a sink strainer 36, 38, as the case may be, and thebody 22 is also provided with a polygonal socket 40 to removably receivea polygonal shank 42 of the strainer engaging head 44, or 46.

The head 44 is provided with three equally spaced radially disposedrecesses 48 to receive the three prongs 50 of the strainer 36, and whenthe wrench is so applied to the strainer and the nut 28 tightened on thethread 34, the strainer 36 may be held stationary while anotherconventional wrench 52 is used for turning a nut 54 on the strainerthread 36a to either install or remove the strainer from the sink 56 asshown in Figure 1.

Alternatively, the head 44 may be separated from the wrench body 22 andreplaced by the head 46 having four equally spaced radial recesses 58therein to receive the four prongs 60 of the strainer 38. In thisstrainer, associated with a sink 62, a nut 64 may be installed on orremoved from the strainer thread 34 by a conventional wrench 66 whilethe strainer itself is held against turning by the wrench 20.

Referring now to the modified form of the invention shown in Figures8-l0 inclusive, the wrench herein is designated generally by thereference character 70 and embodies in its construction a substantiallycylindrical body 12 having a laterally projecting handle 14 securedthereto by a screw 76, the body 12 also being provided with anout-turned flange 18.

A cup-shaped internally threaded nut is rotatably and slidablypositioned on the body 12 and is retained thereon by the flange 18 andalso by a snap ring82 which is removably seated in an annular groove 84with which the body is equipped.

In this instance, the head 86 is formed integrally with the body 12 andis provided with four, relatively deep, radially spaced recesses 88 toreceive a strainer with four prongs. and is also provided with threerelatively shallow radially spaced recesses 90 to receive a strainerwith only three prongs.

The shallow recesses 90 are off set angularly somewhat from therelatively deep recesses 88 and it will be apparent from the foregoingthat in this embodiment of the wrench, the head 86 will accommodate astrainer with three prongs as well as a strainer with four prongs in aselective manner.

It is believed that the advantages and use of the invention will beclearly understood from the foregoing disclosure and accordingly,further description thereof at this point is deemed unnecessary.

While in the foregoing there has been shown and described the preferredembodiment of this invention it is to be understood that minor changesin the details of construction, combination and arrangement of parts maybe resorted to without departing from the spirit and scope of theinvention as claimed.

Having described the invention, what is claimed as new is:

A wrench comprising a substantially cylindrical body provided at one endportion thereof with an annular groove, an out-turned annular flangeprovided at the other end of said body, a work engaging head provided onthe end of the body adjacent said flange, a snap ring positioned in saidgroove, a work engaging nut rotatable and slidable on said body, saidnut having a flanged end portion located between said snap ring and saidannular flange, and a laterally projecting handle secured to the end ofsaid body adjacent said snap ring.

FRANK E. SCHOFIELD.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,009,248 Jenkins Nov. 21, 1911 1,517,176 Shepherd Nov. 25,1924 2,619,861 Wanamaker Dec. 2, 1952

